This thread is intended to provide answers to the most common questions about the Switch's eMMC module and the (built-in storage) and the break-out board it sits on. Open Questions: Is the NAND encrypted / encrypted uniquely per-console? (To be determined) It is extremely likely to be encrypted with console-unique keys, much like the 3DS was. Can you backup the built-in storage? (To be determined) It is likely that the encrypted data can be read, thus allowing a backup image. Can you restore a backup to the same console, after an update has been applied? One of the first pressing questions, really.... I'm actively looking for an answer to this. What are example compatible sockets for the breakout board? The back of the board has a 30-pin ZIF socket... Looking for precise description so people can find replacement parts for the board (and matching socket). Answered Questions: What chip is used for the built-in storage? There are at least two distinct eMMC NAND modules. iFixIt teardown shows a Toshiba THGBMHG8C2LBAIL 32 GB eMMC NAND Flash IC. GamersNexus.net teardown shows a Samsung KLMBG2JENB-B041 (closest parts found... not exact model) Is it right to call the built-in storage NAND? Technically, no;They are eMMC modules. However, it is also technically incorrect to label them simply "eMMC", without the term "chip" or "module" immediately following. This is because the term "eMMC" used alone is a protocol used to communicate with the chip, and define how the chip will respond. I've chosen to purposefully use the incorrect term NAND, as it increases familiarity for those coming from the 3DS. How would I hard-mod the breakout board? See https://twitter.com/maximus64_/status/838239246595014656 for initial pinouts. I'll keep this post updated with answers and other questions as they arise... Feel free to recommend additional questions/answers in responses below.